Sheena consulted atty. paul whether she can successfully her case for declaration of nullity of marriage she against her husband. Atty. Mendoza advised her in writing that the case will not prosper for the reason stated therein. Sheena however, decided to file the case and engage the case with another lawyer. Her husband Lucas having learned the opinion of Atty. Mendoza, hired him as his lawyer.

is Mendoza acquiescence to be

lucas's counsel ethical? Justify.